server/common/material.C

/*
 * This file is part of Deliantra, the Roguelike Realtime MMORPG.
 * 
 * Copyright (©) 2005,2006,2007,2008,2009 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
 * Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team
 * Copyright (©) 1992,2007 Frank Tore Johansen
 * 
 * Deliantra is free software: you can redistribute it and/or modify it under
 * the terms of the Affero GNU General Public License as published by the
 * Free Software Foundation, either version 3 of the License, or (at your
 * option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the Affero GNU General Public License
 * and the GNU General Public License along with this program. If not, see
 * <http://www.gnu.org/licenses/>.
 * 
 * The authors can be reached via e-mail to <support@deliantra.net>
 */

#include <global.h>
#include <material.h>

/* convert materialname to materialtype_t */

materialtype_t *
name_to_material (const shstr_cmp name)
{
  for (materialtype_t *mt = materialt; mt; mt = mt->next)
    if (name == mt->name)
      return mt;

  return 0;
}

/* when doing transmutation of objects, we have to recheck the resistances,
 * as some that did not apply previously, may apply now.
 */
void
transmute_materialname (object *op, const object *change)
{
  materialtype_t *mt;
  int j;

  if (!op->materialname)
    return;

  if (op->materialname != change->materialname)
    return;

  if (!op->is_armor ())
    return;

  mt = name_to_material (op->materialname);
  if (!mt)
    {
      LOG (llevError, "archetype '%s>%s' uses nonexistent material '%s'\n", &op->arch->archname, &op->name, &op->materialname);
      return;
    }

  for (j = 0; j < NROFATTACKS; j++)
    if (op->resist[j] == 0 && change->resist[j] != 0)
      {
        op->resist[j] += mt->mod[j];
        if (op->resist[j] > 100)
          op->resist[j] = 100;
        if (op->resist[j] < -100)
          op->resist[j] = -100;
      }
}

/* set the materialname and type for an item */
void
set_materialname (object *op, int difficulty, materialtype_t *nmt)
{
  materialtype_t *mt, *lmt;

  if (!op->materialname)
    return;

  if (nmt)
    lmt = nmt;
  else
    {
      lmt = 0;

      for (mt = materialt; mt; mt = mt->next)
        if (op->materials & mt->material && rndm (1, 100) <= mt->chance &&
            difficulty >= mt->difficulty && (op->magic >= mt->magic || mt->magic == 0))
          {
            lmt = mt;
            if (!(op->is_weapon () || op->is_armor ()))
              break;
          }
    }

  if (lmt)
    {
      if (op->stats.dam && op->is_weapon ())
        {
          op->stats.dam += lmt->damage;
          if (op->stats.dam < 1)
            op->stats.dam = 1;
        }

      if (op->stats.sp && op->type == BOW)
        op->stats.sp += lmt->sp;
      if (op->stats.wc && op->is_weapon ())
        op->stats.wc += lmt->wc;
      if (op->is_armor ())
        {
          if (op->stats.ac)
            op->stats.ac += lmt->ac;

          for (int j = 0; j < NROFATTACKS; j++)
            if (op->resist[j] != 0)
              {
                op->resist[j] += lmt->mod[j];
                if (op->resist[j] > 100)
                  op->resist[j] = 100;
                if (op->resist[j] < -100)
                  op->resist[j] = -100;
              }
        }

      op->materialname = lmt->name;
      /* dont make it unstackable if it doesn't need to be */
      if (op->is_weapon () || op->is_armor ())
        {
          op->weight = (op->weight * lmt->weight) / 100;
          op->value = (op->value * lmt->value) / 100;
        }
    }
}

//TODO: make this a constructor
static materialtype_t *
get_empty_mat (void)
{
  materialtype_t *mt;
  int i;

  mt = new materialtype_t;

  mt->name        = shstr_unknown;
  mt->description = 0;

  for (i = 0; i < NROFATTACKS; i++)
    {
      mt->save[i] = 0;
      mt->mod[i]  = 0;
    }

  mt->chance      = 0;
  mt->difficulty  = 0;
  mt->magic       = 0;
  mt->damage      = 0;
  mt->wc          = 0;
  mt->ac          = 0;
  mt->sp          = 0;
  mt->weight      = 100;
  mt->value       = 100;
  mt->density     = 1;
  mt->next        = 0;

  return mt;
}

void
load_materials (void)
{
  char filename[MAX_BUF];

  sprintf (filename, "%s/materials", settings.datadir);
  LOG (llevDebug, "Reading material type data from %s...\n", filename);

  //TODO: somehow free old materials, or update them in-place
  materialt = 0;

  object_thawer thawer (filename);

  if (!thawer)
    {
      LOG (llevError, "Cannot open %s for reading\n", filename);
      goto done;
    }

  while (thawer.kw != KW_name)
    {
      thawer.next ();

      if (thawer.kw == KW_EOF)
        goto done;
    }

  materialtype_t *mt;

  for (;;)
    {
      switch (thawer.kw)
        {
          case KW_name:
            mt = get_empty_mat ();
            mt->next = materialt;
            materialt = mt;

            thawer.get (mt->name);
            mt->description = mt->name;
            break;

          case KW_description:
            thawer.get (mt->description);
            break;

          case KW_material:
            thawer.get (mt->material);
            break;

          case KW_saves:
            {
              const char *cp = thawer.get_str () - 1;

              for (int i = 0; i < NROFATTACKS; i++)
                {
                  if (!cp)
                    {
                      mt->save[i] = 0;
                      continue;
                    }

                  int value;
                  ++cp;
                  sscanf (cp, "%d", &value);
                  mt->save[i] = (sint8) value;
                  cp = strchr (cp, ',');
                }
            }
            break;

          case KW_mods:
            {
              const char *cp = thawer.get_str () - 1;

              for (int i = 0; i < NROFATTACKS; i++)
                {
                  if (!cp)
                    {
                      mt->save[i] = 0;
                      continue;
                    }

                  ++cp;
                  int value;
                  sscanf (cp, "%d", &value);
                  mt->mod[i] = (sint8) value;
                  cp = strchr (cp, ',');
                }
            }
            break;

          case KW_chance:  thawer.get (mt->chance);     break;
          case KW_difficulty: // cf+ alias, not original cf
          case KW_diff:    thawer.get (mt->difficulty); break;
          case KW_magic:   thawer.get (mt->magic);      break;
          case KW_dam:        // cf+ alias, not original cf
          case KW_damage:  thawer.get (mt->damage);     break;
          case KW_wc:      thawer.get (mt->wc);         break;
          case KW_ac:      thawer.get (mt->ac);         break;
          case KW_sp:      thawer.get (mt->sp);         break;
          case KW_weight:  thawer.get (mt->weight);     break;
          case KW_value:   thawer.get (mt->value);      break;
          case KW_density: thawer.get (mt->density);    break;

          case KW_EOF:
            goto done;

          default:
            if (!thawer.parse_error ("materials file", "materials"))
              goto done;
            break;
        }

      thawer.next ();
    }

done:
  if (!materialt)
    materialt = get_empty_mat ();

  LOG (llevDebug, "Done.\n");
}

Revision:	1.2
Committed:	Wed Nov 4 00:08:44 2009 UTC (14 years, 8 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.1:	+157 -0 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	root	1.1	/*
2			* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3			*
4			* Copyright (©) 2005,2006,2007,2008,2009 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5			* Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team
6			* Copyright (©) 1992,2007 Frank Tore Johansen
7			*
8			* Deliantra is free software: you can redistribute it and/or modify it under
9			* the terms of the Affero GNU General Public License as published by the
10			* Free Software Foundation, either version 3 of the License, or (at your
11			* option) any later version.
12			*
13			* This program is distributed in the hope that it will be useful,
14			* but WITHOUT ANY WARRANTY; without even the implied warranty of
15			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16			* GNU General Public License for more details.
17			*
18			* You should have received a copy of the Affero GNU General Public License
19			* and the GNU General Public License along with this program. If not, see
20			* <http://www.gnu.org/licenses/>.
21			*
22			* The authors can be reached via e-mail to <support@deliantra.net>
23			*/
24
25			#include <global.h>
26			#include <material.h>
27
28			/* convert materialname to materialtype_t */
29
30			materialtype_t *
31			name_to_material (const shstr_cmp name)
32			{
33			for (materialtype_t *mt = materialt; mt; mt = mt->next)
34			if (name == mt->name)
35			return mt;
36
37			return 0;
38			}
39
40			/* when doing transmutation of objects, we have to recheck the resistances,
41			* as some that did not apply previously, may apply now.
42			*/
43			void
44			transmute_materialname (object op, const object change)
45			{
46			materialtype_t *mt;
47			int j;
48
49			if (!op->materialname)
50			return;
51
52			if (op->materialname != change->materialname)
53			return;
54
55			if (!op->is_armor ())
56			return;
57
58			mt = name_to_material (op->materialname);
59			if (!mt)
60			{
61			LOG (llevError, "archetype '%s>%s' uses nonexistent material '%s'\n", &op->arch->archname, &op->name, &op->materialname);
62			return;
63			}
64
65			for (j = 0; j < NROFATTACKS; j++)
66			if (op->resist[j] == 0 && change->resist[j] != 0)
67			{
68			op->resist[j] += mt->mod[j];
69			if (op->resist[j] > 100)
70			op->resist[j] = 100;
71			if (op->resist[j] < -100)
72			op->resist[j] = -100;
73			}
74			}
75
76			/* set the materialname and type for an item */
77			void
78			set_materialname (object op, int difficulty, materialtype_t nmt)
79			{
80			materialtype_t mt, lmt;
81
82			if (!op->materialname)
83			return;
84
85			if (nmt)
86			lmt = nmt;
87			else
88			{
89			lmt = 0;
90
91			for (mt = materialt; mt; mt = mt->next)
92			if (op->materials & mt->material && rndm (1, 100) <= mt->chance &&
93			difficulty >= mt->difficulty && (op->magic >= mt->magic \|\| mt->magic == 0))
94			{
95			lmt = mt;
96			if (!(op->is_weapon () \|\| op->is_armor ()))
97			break;
98			}
99			}
100
101			if (lmt)
102			{
103			if (op->stats.dam && op->is_weapon ())
104			{
105			op->stats.dam += lmt->damage;
106			if (op->stats.dam < 1)
107			op->stats.dam = 1;
108			}
109
110			if (op->stats.sp && op->type == BOW)
111			op->stats.sp += lmt->sp;
112			if (op->stats.wc && op->is_weapon ())
113			op->stats.wc += lmt->wc;
114			if (op->is_armor ())
115			{
116			if (op->stats.ac)
117			op->stats.ac += lmt->ac;
118
119			for (int j = 0; j < NROFATTACKS; j++)
120			if (op->resist[j] != 0)
121			{
122			op->resist[j] += lmt->mod[j];
123			if (op->resist[j] > 100)
124			op->resist[j] = 100;
125			if (op->resist[j] < -100)
126			op->resist[j] = -100;
127			}
128			}
129
130			op->materialname = lmt->name;
131			/* dont make it unstackable if it doesn't need to be */
132			if (op->is_weapon () \|\| op->is_armor ())
133			{
134			op->weight = (op->weight * lmt->weight) / 100;
135			op->value = (op->value * lmt->value) / 100;
136			}
137			}
138			}
139
140	root	1.2	//TODO: make this a constructor
141			static materialtype_t *
142			get_empty_mat (void)
143			{
144			materialtype_t *mt;
145			int i;
146
147			mt = new materialtype_t;
148
149			mt->name = shstr_unknown;
150			mt->description = 0;
151
152			for (i = 0; i < NROFATTACKS; i++)
153			{
154			mt->save[i] = 0;
155			mt->mod[i] = 0;
156			}
157
158			mt->chance = 0;
159			mt->difficulty = 0;
160			mt->magic = 0;
161			mt->damage = 0;
162			mt->wc = 0;
163			mt->ac = 0;
164			mt->sp = 0;
165			mt->weight = 100;
166			mt->value = 100;
167			mt->density = 1;
168			mt->next = 0;
169
170			return mt;
171			}
172
173			void
174			load_materials (void)
175			{
176			char filename[MAX_BUF];
177
178			sprintf (filename, "%s/materials", settings.datadir);
179			LOG (llevDebug, "Reading material type data from %s...\n", filename);
180
181			//TODO: somehow free old materials, or update them in-place
182			materialt = 0;
183
184			object_thawer thawer (filename);
185
186			if (!thawer)
187			{
188			LOG (llevError, "Cannot open %s for reading\n", filename);
189			goto done;
190			}
191
192			while (thawer.kw != KW_name)
193			{
194			thawer.next ();
195
196			if (thawer.kw == KW_EOF)
197			goto done;
198			}
199
200			materialtype_t *mt;
201
202			for (;;)
203			{
204			switch (thawer.kw)
205			{
206			case KW_name:
207			mt = get_empty_mat ();
208			mt->next = materialt;
209			materialt = mt;
210
211			thawer.get (mt->name);
212			mt->description = mt->name;
213			break;
214
215			case KW_description:
216			thawer.get (mt->description);
217			break;
218
219			case KW_material:
220			thawer.get (mt->material);
221			break;
222
223			case KW_saves:
224			{
225			const char *cp = thawer.get_str () - 1;
226
227			for (int i = 0; i < NROFATTACKS; i++)
228			{
229			if (!cp)
230			{
231			mt->save[i] = 0;
232			continue;
233			}
234
235			int value;
236			++cp;
237			sscanf (cp, "%d", &value);
238			mt->save[i] = (sint8) value;
239			cp = strchr (cp, ',');
240			}
241			}
242			break;
243
244			case KW_mods:
245			{
246			const char *cp = thawer.get_str () - 1;
247
248			for (int i = 0; i < NROFATTACKS; i++)
249			{
250			if (!cp)
251			{
252			mt->save[i] = 0;
253			continue;
254			}
255
256			++cp;
257			int value;
258			sscanf (cp, "%d", &value);
259			mt->mod[i] = (sint8) value;
260			cp = strchr (cp, ',');
261			}
262			}
263			break;
264
265			case KW_chance: thawer.get (mt->chance); break;
266			case KW_difficulty: // cf+ alias, not original cf
267			case KW_diff: thawer.get (mt->difficulty); break;
268			case KW_magic: thawer.get (mt->magic); break;
269			case KW_dam: // cf+ alias, not original cf
270			case KW_damage: thawer.get (mt->damage); break;
271			case KW_wc: thawer.get (mt->wc); break;
272			case KW_ac: thawer.get (mt->ac); break;
273			case KW_sp: thawer.get (mt->sp); break;
274			case KW_weight: thawer.get (mt->weight); break;
275			case KW_value: thawer.get (mt->value); break;
276			case KW_density: thawer.get (mt->density); break;
277
278			case KW_EOF:
279			goto done;
280
281			default:
282			if (!thawer.parse_error ("materials file", "materials"))
283			goto done;
284			break;
285			}
286
287			thawer.next ();
288			}
289
290			done:
291			if (!materialt)
292			materialt = get_empty_mat ();
293
294			LOG (llevDebug, "Done.\n");
295			}
296